[The full story is complete, so read without worry]
"We agreed on three years at first, then three years more, and then another three years. I'm about to become the King of Knights of Britain! When is this ever going to end?!"
Vortigern looked at his son, Jojas Pendragon, and said:
"Come back as soon as Arthur dies. Once this is over, come back..."
"..."
Many years later, Jojas Pendragon, now the most notorious double agent in Human History, was summoned to Chaldea as a Heroic Spirit...
Before the assembled Heroic Spirits, he confessed:
"I was such a fool. Truly."
Jojas raised his lifeless eyes and said, "I thought it really would be like my old man said: once this was over, I'd come back. But I never imagined I'd spend so many years undercover. If I tell you I never wanted to do it, will you believe me..."
[Also by the author: the completed novel The Wonderful Journey of the Best Villain, over one million words]
All gone well